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Finding the Fourth Proportional to 129,015, 193,472.73 and 50,118.84

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Solution

The fourth proportional to 129,015, 193,472.73 and 50,118.84 is: 75,158.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,015 : 193,472.73 = 50,118.84 : x
  2. Step 2: Convert to fraction form
    129,015/193,472.73 = 50,118.84/x
  3. Step 3: Cross multiply
    129,015x = 193,472.73 × 50,118.84
  4. Step 4: Simplify right side
    129,015x = 9,696,628,799.23
  5. Step 5: Solve for x
    x = 9,696,628,799.23/129,015
  6. Step 6: Final answer
    x = 75,158.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.